Expr.h revision 77ed8e4edf6ed78c53fb20ec3210aff2a59c9d87
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- Expr.h - Classes for representing expressions ----------*- C++ -*-===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 55f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// This file was developed by Chris Lattner and is distributed under 65f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// the University of Illinois Open Source License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// This file defines the Expr interface and subclasses. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#ifndef LLVM_CLANG_AST_EXPR_H 155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#define LLVM_CLANG_AST_EXPR_H 165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/Stmt.h" 185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/Type.h" 195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/Decl.h" 205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "llvm/ADT/APSInt.h" 215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class IdentifierInfo; 245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class Decl; 25590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner class ASTContext; 265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Expr - This represents one expression. Note that Expr's are subclasses of 285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Stmt. This allows an expression to be transparently used any place a Stmt 295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// is required. 305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass Expr : public Stmt { 325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType TR; 335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr(StmtClass SC, QualType T) : Stmt(SC), TR(T) {} 355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ~Expr() {} 365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType getType() const { return TR; } 38fa2eaabd304172dd8afc561f6156a65f8d0e442bSteve Naroff void setType(QualType t) { TR = t; } 3977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// SourceLocation tokens are not useful in isolation - they are low level 415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// value objects created/interpreted by SourceManager. We assume AST 425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// clients will have a pointer to the respective SourceManager. 435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const = 0; 445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation getLocStart() const { return getSourceRange().Begin(); } 455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation getLocEnd() const { return getSourceRange().End(); } 465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getExprLoc - Return the preferred location for the arrow when diagnosing 485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// a problem with a generic expression. 495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return getLocStart(); } 505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// hasLocalSideEffect - Return true if this immediate expression has side 525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// effects, not counting any sub-expressions. 535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool hasLocalSideEffect() const; 545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isLvalue - C99 6.3.2.1: an lvalue is an expression with an object type or 565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// incomplete type other than void. Nonarray expressions that can be lvalues: 575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - name, where name must be a variable 585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e[i] 595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - (e), where e must be an lvalue 605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e.name, where e must be an lvalue 615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e->name 625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - *e, the type of e cannot be a function type 635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - string-constant 6408ad47cbd1f81fcb31dbc731c13b885a07e12704Bill Wendling /// - reference type [C++ [expr]] 655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isLvalueResult { 675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_Valid, 685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_NotObjectType, 695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_IncompleteVoidType, 70fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff LV_DuplicateVectorComponents, 715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_InvalidExpression 725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 73ca51c97fbb10b9d48e1857e01c532493f87cd5f0Bill Wendling isLvalueResult isLvalue() const; 745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isModifiableLvalue - C99 6.3.2.1: an lvalue that does not have array type, 765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// does not have an incomplete type, does not have a const-qualified type, 775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// and if it is a structure or union, does not have any member (including, 785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// recursively, any member or element of all contained aggregates or unions) 795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// with a const-qualified type. 805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isModifiableLvalueResult { 815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_Valid, 825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_NotObjectType, 835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteVoidType, 84fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff MLV_DuplicateVectorComponents, 855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_InvalidExpression, 865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteType, 875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_ConstQualified, 885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_ArrayType 895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 90ca51c97fbb10b9d48e1857e01c532493f87cd5f0Bill Wendling isModifiableLvalueResult isModifiableLvalue() const; 915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 92590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isNullPointerConstant(ASTContext &Ctx) const; 935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isIntegerConstantExpr - Return true if this expression is a valid integer 955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// constant expression, and, if so, return its value in Result. If not a 965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// valid i-c-e, return false and fill in Loc (if specified) with the location 975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the invalid expression. 98590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(llvm::APSInt &Result, ASTContext &Ctx, 99590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner SourceLocation *Loc = 0, 1005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isEvaluated = true) const; 101590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(ASTContext &Ctx, SourceLocation *Loc = 0) const { 1025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::APSInt X(32); 103590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner return isIntegerConstantExpr(X, Ctx, Loc); 1045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 1075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() >= firstExprConstant && 1085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer T->getStmtClass() <= lastExprConstant; 1095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Expr *) { return true; } 1115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 1125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 1145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Primary Expressions. 1155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 1165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// DeclRefExpr - [C99 6.5.1p2] - A reference to a declared variable, function, 1185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// enum, etc. 1195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass DeclRefExpr : public Expr { 1205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Decl *D; // a ValueDecl or EnumConstantDecl 1215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 1225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DeclRefExpr(Decl *d, QualType t, SourceLocation l) : 1245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr(DeclRefExprClass, t), D(d), Loc(l) {} 1255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Decl *getDecl() { return D; } 1275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const Decl *getDecl() const { return D; } 1285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 1295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 1325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == DeclRefExprClass; 1335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const DeclRefExpr *) { return true; } 13577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 13677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 13777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 13877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 1395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 141ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// PreDefinedExpr - [C99 6.4.2.2] - A pre-defined identifier such as __func__. 142227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonclass PreDefinedExpr : public Expr { 143227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 144227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson enum IdentType { 145227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Func, 146227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Function, 147227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson PrettyFunction 148227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson }; 149227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 150227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonprivate: 151227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson SourceLocation Loc; 152227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType Type; 153227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 154227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson PreDefinedExpr(SourceLocation l, QualType type, IdentType IT) 155227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson : Expr(PreDefinedExprClass, type), Loc(l), Type(IT) {} 156227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 157227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType getIdentType() const { return Type; } 158227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 159227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 160227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 161227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson static bool classof(const Stmt *T) { 162227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson return T->getStmtClass() == PreDefinedExprClass; 163227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson } 16477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek static bool classof(const PreDefinedExpr *) { return true; } 16577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 16677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 16777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 16877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 169227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson}; 170227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass IntegerLiteral : public Expr { 1725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::APInt Value; 1735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 1745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 1765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // or UnsignedLongLongTy 1775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer IntegerLiteral(const llvm::APInt &V, QualType type, SourceLocation l) 1785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer : Expr(IntegerLiteralClass, type), Value(V), Loc(l) { 1795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(type->isIntegerType() && "Illegal type in IntegerLiteral"); 1805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const llvm::APInt &getValue() const { return Value; } 1825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 1835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 1855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == IntegerLiteralClass; 1865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const IntegerLiteral *) { return true; } 18877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 18977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 19077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 19177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 1925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 1935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CharacterLiteral : public Expr { 1955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned Value; 1965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 1975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy 1995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CharacterLiteral(unsigned value, QualType type, SourceLocation l) 2005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer : Expr(CharacterLiteralClass, type), Value(value), Loc(l) { 2015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2022eadfb638eb1bb6ccfd6fd0453e764d47e27eed9Chris Lattner SourceLocation getLoc() const { return Loc; } 2032eadfb638eb1bb6ccfd6fd0453e764d47e27eed9Chris Lattner 2045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 2055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getValue() const { return Value; } 2075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 2095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == CharacterLiteralClass; 2105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CharacterLiteral *) { return true; } 21277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 21377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 21477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 21577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 2165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 2175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass FloatingLiteral : public Expr { 2195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer float Value; // FIXME 2205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 2215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 2225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatingLiteral(float value, QualType type, SourceLocation l) 2235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer : Expr(FloatingLiteralClass, type), Value(value), Loc(l) {} 2245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer float getValue() const { return Value; } 2265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 2285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 2305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == FloatingLiteralClass; 2315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const FloatingLiteral *) { return true; } 23377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 23477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 23577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 23677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 2375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 2385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 239e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// StringLiteral - This represents a string literal expression, e.g. "foo" 240e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// or L"bar" (wide strings). The actual string is returned by getStrData() 241e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// is NOT null-terminated, and the length of the string is determined by 242e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// calling getByteLength(). 2435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass StringLiteral : public Expr { 2445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *StrData; 2455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned ByteLength; 2465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool IsWide; 2475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // if the StringLiteral was composed using token pasting, both locations 2485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // are needed. If not (the common case), firstTokLoc == lastTokLoc. 2495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FIXME: if space becomes an issue, we should create a sub-class. 2505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation firstTokLoc, lastTokLoc; 2515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 2525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer StringLiteral(const char *strData, unsigned byteLength, bool Wide, 2535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType t, SourceLocation b, SourceLocation e); 2545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual ~StringLiteral(); 2555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *getStrData() const { return StrData; } 2575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getByteLength() const { return ByteLength; } 2585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isWide() const { return IsWide; } 2595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 2615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(firstTokLoc,lastTokLoc); 2625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 2645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == StringLiteralClass; 2655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const StringLiteral *) { return true; } 26777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 26877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 26977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 27077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 2715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 2725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParenExpr - This represents a parethesized expression, e.g. "(1)". This 2745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// AST node is only formed if full location information is requested. 2755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ParenExpr : public Expr { 2765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L, R; 2775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *Val; 2785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 2795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenExpr(SourceLocation l, SourceLocation r, Expr *val) 2805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer : Expr(ParenExprClass, val->getType()), L(l), R(r), Val(val) {} 2815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const Expr *getSubExpr() const { return Val; } 2835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getSubExpr() { return Val; } 2845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceRange getSourceRange() const { return SourceRange(L, R); } 2855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 2875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == ParenExprClass; 2885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ParenExpr *) { return true; } 29077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 29177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 29277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 29377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 2945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 2955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// UnaryOperator - This represents the unary-expression's (except sizeof of 2985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// types), the postinc/postdec operators from postfix-expression, and various 2995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// extensions. 3005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass UnaryOperator : public Expr { 3015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 30213d130c3d225cdb5b1e6d9e86cea12eea718c707Chris Lattner // Note that additions to this should also update the StmtVisitor class. 3035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum Opcode { 3045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PostInc, PostDec, // [C99 6.5.2.4] Postfix increment and decrement operators 3055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PreInc, PreDec, // [C99 6.5.3.1] Prefix increment and decrement operators. 3065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AddrOf, Deref, // [C99 6.5.3.2] Address and indirection operators. 3075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Plus, Minus, // [C99 6.5.3.3] Unary arithmetic operators. 3085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Not, LNot, // [C99 6.5.3.3] Unary arithmetic operators. 3095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SizeOf, AlignOf, // [C99 6.5.3.4] Sizeof (expr, not type) operator. 3105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Real, Imag, // "__real expr"/"__imag expr" Extension. 3115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Extension // __extension__ marker. 3125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 3135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 3145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *Val; 3155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode Opc; 3165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 3175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 3185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer UnaryOperator(Expr *input, Opcode opc, QualType type, SourceLocation l) 3205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer : Expr(UnaryOperatorClass, type), Val(input), Opc(opc), Loc(l) {} 3215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode getOpcode() const { return Opc; } 3235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getSubExpr() const { return Val; } 3245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOperatorLoc - Return the location of the operator. 3265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation getOperatorLoc() const { return Loc; } 3275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isPostfix - Return true if this is a postfix operation, like x++. 3295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool isPostfix(Opcode Op); 3305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isPostfix() const { return isPostfix(Opc); } 3325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isIncrementDecrementOp() const { return Opc>=PostInc && Opc<=PreDec; } 3335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isSizeOfAlignOfOp() const { return Opc == SizeOf || Opc == AlignOf; } 3345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool isArithmeticOp(Opcode Op) { return Op >= Plus && Op <= LNot; } 3355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getDecl - a recursive routine that derives the base decl for an 3375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// expression. For example, it will return the declaration for "s" from 3385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// the following complex expression "s.zz[2].bb.vv". 3395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool isAddressable(Expr *e); 3405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 3425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "sizeof" or "[pre]++" 3435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 3445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 3465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isPostfix()) 3475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Val->getLocStart(), Loc); 3485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 3495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Loc, Val->getLocEnd()); 3505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return Loc; } 3525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 3545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == UnaryOperatorClass; 3555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const UnaryOperator *) { return true; } 35777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 35877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 35977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 36077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 3615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 3625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// SizeOfAlignOfTypeExpr - [C99 6.5.3.4] - This is only for sizeof/alignof of 3645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// *types*. sizeof(expr) is handled by UnaryOperator. 3655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass SizeOfAlignOfTypeExpr : public Expr { 3665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isSizeof; // true if sizeof, false if alignof. 3675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Ty; 3685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc, RParenLoc; 3695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 3705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SizeOfAlignOfTypeExpr(bool issizeof, QualType argType, QualType resultType, 3715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation op, SourceLocation rp) : 3725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr(SizeOfAlignOfTypeExprClass, resultType), 3735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isSizeof(issizeof), Ty(argType), OpLoc(op), RParenLoc(rp) {} 3745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isSizeOf() const { return isSizeof; } 3765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType getArgumentType() const { return Ty; } 37776e773a443be9f006610f46529e07d4c8d857680Chris Lattner 37876e773a443be9f006610f46529e07d4c8d857680Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 3795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceRange getSourceRange() const { return SourceRange(OpLoc, RParenLoc); } 3805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 3825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == SizeOfAlignOfTypeExprClass; 3835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const SizeOfAlignOfTypeExpr *) { return true; } 38577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 38677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 38777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 38877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 3895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 3905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Postfix Operators. 3935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting. 3965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ArraySubscriptExpr : public Expr { 39777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { LHS, RHS, END_EXPR=2 }; 39877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek Expr* SubExprs[END_EXPR]; 3995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RBracketLoc; 4005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 4012324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek ArraySubscriptExpr(Expr *lhs, Expr *rhs, QualType t, 4025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation rbracketloc) : 4035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr(ArraySubscriptExprClass, t), 40477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek RBracketLoc(rbracketloc) { 40577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek SubExprs[LHS] = lhs; 40677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek SubExprs[RHS] = rhs; 40777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 4085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4092324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// An array access can be written A[4] or 4[A] (both are equivalent). 4102324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getBase() and getIdx() always present the normalized view: A[4]. 4112324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// In this case getBase() returns "A" and getIdx() returns "4". 4122324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getLHS() and getRHS() present the syntactic view. e.g. for 4132324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// 4[A] getLHS() returns "4". 41477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 41577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek Expr *getLHS() { return SubExprs[LHS]; } 41677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek const Expr *getLHS() const { return SubExprs[LHS]; } 41777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 41877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek Expr *getRHS() { return SubExprs[RHS]; } 41977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek const Expr *getRHS() const { return SubExprs[RHS]; } 4202324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek 42177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek Expr *getBase() { 42277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return (getLHS()->getType()->isIntegerType()) ? getRHS() : getLHS(); 42377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 42477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 4252324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek const Expr *getBase() const { 42677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return (getLHS()->getType()->isIntegerType()) ? getRHS() : getLHS(); 4272324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 4282324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek 42977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek Expr *getIdx() { 43077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return (getLHS()->getType()->isIntegerType()) ? getLHS() : getRHS(); 4312324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 4322324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek 43377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek const Expr *getIdx() const { 43477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return (getLHS()->getType()->isIntegerType()) ? getLHS() : getRHS(); 43577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 43677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 4375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceRange getSourceRange() const { 43977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getLHS()->getLocStart(), RBracketLoc); 4405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return RBracketLoc; } 4425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 4445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == ArraySubscriptExprClass; 4455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ArraySubscriptExpr *) { return true; } 44777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 44877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 44977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 45077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 4515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 4525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CallExpr - [C99 6.5.2.2] Function Calls. 4555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 4565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CallExpr : public Expr { 45777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { FN=0, ARGS_START=1 }; 45877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek Expr **SubExprs; 4595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs; 4605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RParenLoc; 4615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 4625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CallExpr(Expr *fn, Expr **args, unsigned numargs, QualType t, 4635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation rparenloc); 4645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ~CallExpr() { 46577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek delete [] SubExprs; 4665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 46877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek const Expr *getCallee() const { return SubExprs[FN]; } 46977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek Expr *getCallee() { return SubExprs[FN]; } 4705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumArgs - Return the number of actual arguments to this call. 4725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 4735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumArgs() const { return NumArgs; } 4745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getArg - Return the specified argument. 4765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getArg(unsigned Arg) { 4775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 47877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SubExprs[Arg+ARGS_START]; 4795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const Expr *getArg(unsigned Arg) const { 4815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 48277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SubExprs[Arg+ARGS_START]; 4835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumCommas - Return the number of commas that must have been present in 4865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this function call. 4875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumCommas() const { return NumArgs ? NumArgs - 1 : 0; } 4885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 48913b7c5ff42d6077a8d59e2c9ec9e7fedd0150ae6Steve Naroff bool isBuiltinClassifyType(llvm::APSInt &Result) const; 49013b7c5ff42d6077a8d59e2c9ec9e7fedd0150ae6Steve Naroff 4915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceRange getSourceRange() const { 49277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getCallee()->getLocStart(), RParenLoc); 4935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 4965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == CallExprClass; 4975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CallExpr *) { return true; } 49977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 50077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 50177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 50277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 5035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 5045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// MemberExpr - [C99 6.5.2.3] Structure and Union Members. 5065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 5075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass MemberExpr : public Expr { 5085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *Base; 5095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FieldDecl *MemberDecl; 5105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation MemberLoc; 5115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool IsArrow; // True if this is "X->F", false if this is "X.F". 5125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 5135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MemberExpr(Expr *base, bool isarrow, FieldDecl *memberdecl, SourceLocation l) 5145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer : Expr(MemberExprClass, memberdecl->getType()), 5155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Base(base), MemberDecl(memberdecl), MemberLoc(l), IsArrow(isarrow) {} 5165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getBase() const { return Base; } 5185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FieldDecl *getMemberDecl() const { return MemberDecl; } 5195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isArrow() const { return IsArrow; } 5205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 5225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getBase()->getLocStart(), MemberLoc); 5235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return MemberLoc; } 5255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 5275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == MemberExprClass; 5285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const MemberExpr *) { return true; } 5305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 5315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5326481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner/// OCUVectorElementExpr - This represents access to specific elements of a 533cb92a118145c2a425666068d37c4049c38e24914Chris Lattner/// vector, and may occur on the left hand side or right hand side. For example 534cb92a118145c2a425666068d37c4049c38e24914Chris Lattner/// the following is legal: "V.xy = V.zw" if V is a 4 element ocu vector. 53531a458462c6cf417a84e0c47852b18fb22d79acbSteve Naroff/// 5366481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattnerclass OCUVectorElementExpr : public Expr { 537fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff Expr *Base; 538fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff IdentifierInfo &Accessor; 539fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff SourceLocation AccessorLoc; 54031a458462c6cf417a84e0c47852b18fb22d79acbSteve Naroffpublic: 5416481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner enum ElementType { 542cb92a118145c2a425666068d37c4049c38e24914Chris Lattner Point, // xywz 543cb92a118145c2a425666068d37c4049c38e24914Chris Lattner Color, // rgba 544dd652cdb7046155437eeb3dff512768f0a57369bChris Lattner Texture // stpq 54531a458462c6cf417a84e0c47852b18fb22d79acbSteve Naroff }; 5466481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner OCUVectorElementExpr(QualType ty, Expr *base, IdentifierInfo &accessor, 5476481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner SourceLocation loc) 5486481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner : Expr(OCUVectorElementExprClass, ty), 5496481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner Base(base), Accessor(accessor), AccessorLoc(loc) {} 55031a458462c6cf417a84e0c47852b18fb22d79acbSteve Naroff 551cb92a118145c2a425666068d37c4049c38e24914Chris Lattner const Expr *getBase() const { return Base; } 552cb92a118145c2a425666068d37c4049c38e24914Chris Lattner Expr *getBase() { return Base; } 553cb92a118145c2a425666068d37c4049c38e24914Chris Lattner 554cb92a118145c2a425666068d37c4049c38e24914Chris Lattner IdentifierInfo &getAccessor() const { return Accessor; } 555cb92a118145c2a425666068d37c4049c38e24914Chris Lattner 5566481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner /// getNumElements - Get the number of components being selected. 5576481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner unsigned getNumElements() const; 5584d0ac88428b3ed7c6f3a2f4e758ea5424ecd70aeChris Lattner 5596481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner /// getElementType - Determine whether the components of this access are 560cb92a118145c2a425666068d37c4049c38e24914Chris Lattner /// "point" "color" or "texture" elements. 5616481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner ElementType getElementType() const; 56231a458462c6cf417a84e0c47852b18fb22d79acbSteve Naroff 5636481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner /// containsDuplicateElements - Return true if any element access is 564cb92a118145c2a425666068d37c4049c38e24914Chris Lattner /// repeated. 5656481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner bool containsDuplicateElements() const; 566fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff 567b8f849da3cedee2f61ad98389115ddd04e439d60Chris Lattner /// getEncodedElementAccess - Encode the elements accessed into a bit vector. 568b8f849da3cedee2f61ad98389115ddd04e439d60Chris Lattner /// The encoding currently uses 2-bit bitfields, but clients should use the 569b8f849da3cedee2f61ad98389115ddd04e439d60Chris Lattner /// accessors below to access them. 570b8f849da3cedee2f61ad98389115ddd04e439d60Chris Lattner /// 571b8f849da3cedee2f61ad98389115ddd04e439d60Chris Lattner unsigned getEncodedElementAccess() const; 572b8f849da3cedee2f61ad98389115ddd04e439d60Chris Lattner 573b8f849da3cedee2f61ad98389115ddd04e439d60Chris Lattner /// getAccessedFieldNo - Given an encoded value and a result number, return 574b8f849da3cedee2f61ad98389115ddd04e439d60Chris Lattner /// the input field number being accessed. 575b8f849da3cedee2f61ad98389115ddd04e439d60Chris Lattner static unsigned getAccessedFieldNo(unsigned Idx, unsigned EncodedVal) { 576b8f849da3cedee2f61ad98389115ddd04e439d60Chris Lattner return (EncodedVal >> (Idx*2)) & 3; 577b8f849da3cedee2f61ad98389115ddd04e439d60Chris Lattner } 578b8f849da3cedee2f61ad98389115ddd04e439d60Chris Lattner 57931a458462c6cf417a84e0c47852b18fb22d79acbSteve Naroff virtual SourceRange getSourceRange() const { 58031a458462c6cf417a84e0c47852b18fb22d79acbSteve Naroff return SourceRange(getBase()->getLocStart(), AccessorLoc); 58131a458462c6cf417a84e0c47852b18fb22d79acbSteve Naroff } 58231a458462c6cf417a84e0c47852b18fb22d79acbSteve Naroff static bool classof(const Stmt *T) { 5836481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner return T->getStmtClass() == OCUVectorElementExprClass; 58431a458462c6cf417a84e0c47852b18fb22d79acbSteve Naroff } 5856481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner static bool classof(const OCUVectorElementExpr *) { return true; } 58631a458462c6cf417a84e0c47852b18fb22d79acbSteve Naroff}; 58731a458462c6cf417a84e0c47852b18fb22d79acbSteve Naroff 588aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// CompoundLiteralExpr - [C99 6.5.2.5] 589aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// 590aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffclass CompoundLiteralExpr : public Expr { 591aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff Expr *Init; 592aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffpublic: 593aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff CompoundLiteralExpr(QualType ty, Expr *init) : 594aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff Expr(CompoundLiteralExprClass, ty), Init(init) {} 595aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 59606184086c10c6672f4bcc3630a5a2b0bed048f63Chris Lattner const Expr *getInitializer() const { return Init; } 59706184086c10c6672f4bcc3630a5a2b0bed048f63Chris Lattner Expr *getInitializer() { return Init; } 598aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 59906184086c10c6672f4bcc3630a5a2b0bed048f63Chris Lattner virtual SourceRange getSourceRange() const { return Init->getSourceRange(); } 600aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 601aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff static bool classof(const Stmt *T) { 602aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff return T->getStmtClass() == CompoundLiteralExprClass; 603aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff } 604aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff static bool classof(const CompoundLiteralExpr *) { return true; } 605aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff}; 606aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 60749b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff/// ImplicitCastExpr - Allows us to explicitly represent implicit type 60849b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff/// conversions. For example: converting T[]->T*, void f()->void (*f)(), 60949b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff/// float->double, short->int, etc. 61049b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff/// 61149b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroffclass ImplicitCastExpr : public Expr { 61249b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff Expr *Op; 61349b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroffpublic: 61449b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff ImplicitCastExpr(QualType ty, Expr *op) : 615d0d560a0975c2f8c4a9559e84ec556b6a0baf7dfChris Lattner Expr(ImplicitCastExprClass, ty), Op(op) {} 61649b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 617d0d560a0975c2f8c4a9559e84ec556b6a0baf7dfChris Lattner Expr *getSubExpr() { return Op; } 618d0d560a0975c2f8c4a9559e84ec556b6a0baf7dfChris Lattner const Expr *getSubExpr() const { return Op; } 61990045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 620aa4166c6c86e174362c0dc4e2cb63345f72cc5a0Chris Lattner virtual SourceRange getSourceRange() const { return Op->getSourceRange(); } 62190045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 62249b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff static bool classof(const Stmt *T) { 62349b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff return T->getStmtClass() == ImplicitCastExprClass; 62449b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff } 62549b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff static bool classof(const ImplicitCastExpr *) { return true; } 62649b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff}; 62749b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 6285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CastExpr - [C99 6.5.4] Cast Operators. 6295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 6305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CastExpr : public Expr { 6315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *Op; 6325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; // the location of the left paren 6335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 6345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CastExpr(QualType ty, Expr *op, SourceLocation l) : 63526dc7b39267b7d29b35a7887a5b8e54697192192Chris Lattner Expr(CastExprClass, ty), Op(op), Loc(l) {} 63649b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 6375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation getLParenLoc() const { return Loc; } 6385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getSubExpr() const { return Op; } 6405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 6425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Loc, getSubExpr()->getSourceRange().End()); 6435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 6455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == CastExprClass; 6465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CastExpr *) { return true; } 6485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 6495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass BinaryOperator : public Expr { 6515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 6525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum Opcode { 6535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Operators listed in order of precedence. 65403d6fb99224c36935c9af9f4785cb33453c99b2bChris Lattner // Note that additions to this should also update the StmtVisitor class. 6555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Mul, Div, Rem, // [C99 6.5.5] Multiplicative operators. 6565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Add, Sub, // [C99 6.5.6] Additive operators. 6575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Shl, Shr, // [C99 6.5.7] Bitwise shift operators. 6585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LT, GT, LE, GE, // [C99 6.5.8] Relational operators. 6595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer EQ, NE, // [C99 6.5.9] Equality operators. 6605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer And, // [C99 6.5.10] Bitwise AND operator. 6615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Xor, // [C99 6.5.11] Bitwise XOR operator. 6625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Or, // [C99 6.5.12] Bitwise OR operator. 6635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LAnd, // [C99 6.5.13] Logical AND operator. 6645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LOr, // [C99 6.5.14] Logical OR operator. 6655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Assign, MulAssign,// [C99 6.5.16] Assignment operators. 6665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DivAssign, RemAssign, 6675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AddAssign, SubAssign, 6685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ShlAssign, ShrAssign, 6695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AndAssign, XorAssign, 6705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer OrAssign, 6715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Comma // [C99 6.5.17] Comma operator. 6725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 6735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy) 6755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer : Expr(BinaryOperatorClass, ResTy), LHS(lhs), RHS(rhs), Opc(opc) { 6765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(!isCompoundAssignmentOp() && 6775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Use ArithAssignBinaryOperator for compound assignments"); 6785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode getOpcode() const { return Opc; } 6815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getLHS() const { return LHS; } 6825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getRHS() const { return RHS; } 6835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 6845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getLHS()->getLocStart(), getRHS()->getLocEnd()); 6855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 6885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "<<=". 6895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 6905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// predicates to categorize the respective opcodes. 6925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isMultiplicativeOp() const { return Opc >= Mul && Opc <= Rem; } 6935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isAdditiveOp() const { return Opc == Add || Opc == Sub; } 6945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isShiftOp() const { return Opc == Shl || Opc == Shr; } 6955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isBitwiseOp() const { return Opc >= And && Opc <= Or; } 6965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isRelationalOp() const { return Opc >= LT && Opc <= GE; } 6975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isEqualityOp() const { return Opc == EQ || Opc == NE; } 6985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isLogicalOp() const { return Opc == LAnd || Opc == LOr; } 6995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isAssignmentOp() const { return Opc >= Assign && Opc <= OrAssign; } 7005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCompoundAssignmentOp() const { return Opc > Assign && Opc <= OrAssign;} 7015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isShiftAssignOp() const { return Opc == ShlAssign || Opc == ShrAssign; } 7025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 7045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == BinaryOperatorClass; 7055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const BinaryOperator *) { return true; } 7075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 7085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *LHS, *RHS; 7095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode Opc; 7105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 7115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, bool dead) 7125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer : Expr(BinaryOperatorClass, ResTy), LHS(lhs), RHS(rhs), Opc(opc) { 7135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 7155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CompoundAssignOperator - For compound assignments (e.g. +=), we keep 7175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// track of the type the operation is performed in. Due to the semantics of 7185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// these operators, the operands are promoted, the aritmetic performed, an 7195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// implicit conversion back to the result type done, then the assignment takes 7205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// place. This captures the intermediate type which the computation is done 7215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// in. 7225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CompoundAssignOperator : public BinaryOperator { 7235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType ComputationType; 7245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 7255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CompoundAssignOperator(Expr *lhs, Expr *rhs, Opcode opc, 7265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType ResType, QualType CompType) 7275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer : BinaryOperator(lhs, rhs, opc, ResType, true), ComputationType(CompType) { 7285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(isCompoundAssignmentOp() && 7295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Only should be used for compound assignments"); 7305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType getComputationType() const { return ComputationType; } 7335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CompoundAssignOperator *) { return true; } 7355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const BinaryOperator *B) { 7365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return B->isCompoundAssignmentOp(); 7375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *S) { 7395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return isa<BinaryOperator>(S) && classof(cast<BinaryOperator>(S)); 7405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 7425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ConditionalOperator - The ?: operator. Note that LHS may be null when the 7445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// GNU "missing LHS" extension is in use. 7455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 7465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ConditionalOperator : public Expr { 7475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *Cond, *LHS, *RHS; // Left/Middle/Right hand sides. 7485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 7495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConditionalOperator(Expr *cond, Expr *lhs, Expr *rhs, QualType t) 7505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer : Expr(ConditionalOperatorClass, t), Cond(cond), LHS(lhs), RHS(rhs) {} 7515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getCond() const { return Cond; } 7535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getLHS() const { return LHS; } 7545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getRHS() const { return RHS; } 7555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 7575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getCond()->getLocStart(), getRHS()->getLocEnd()); 7585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 7605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == ConditionalOperatorClass; 7615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ConditionalOperator *) { return true; } 7635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 7645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7656481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner/// AddrLabelExpr - The GNU address of label extension, representing &&label. 7666481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattnerclass AddrLabelExpr : public Expr { 7675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation AmpAmpLoc, LabelLoc; 7685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *Label; 7695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 7706481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner AddrLabelExpr(SourceLocation AALoc, SourceLocation LLoc, LabelStmt *L, 7716481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner QualType t) 7726481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner : Expr(AddrLabelExprClass, t), AmpAmpLoc(AALoc), LabelLoc(LLoc), Label(L) {} 7735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 7755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(AmpAmpLoc, LabelLoc); 7765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *getLabel() const { return Label; } 7795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 7816481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner return T->getStmtClass() == AddrLabelExprClass; 7825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7836481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner static bool classof(const AddrLabelExpr *) { return true; } 7845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 785ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 786ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}). 787ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// The StmtExpr contains a single CompoundStmt node, which it evaluates and 788ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// takes the value of the last subexpression. 789ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerclass StmtExpr : public Expr { 790ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner CompoundStmt *SubStmt; 791ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner SourceLocation LParenLoc, RParenLoc; 792ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerpublic: 793d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff StmtExpr(CompoundStmt *substmt, QualType T, 794d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff SourceLocation lp, SourceLocation rp) : 795d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff Expr(StmtExprClass, T), SubStmt(substmt), LParenLoc(lp), RParenLoc(rp) { } 796ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 797ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner CompoundStmt *getSubStmt() { return SubStmt; } 798ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner const CompoundStmt *getSubStmt() const { return SubStmt; } 799ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 800ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner virtual SourceRange getSourceRange() const { 801ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner return SourceRange(LParenLoc, RParenLoc); 802ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 8035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 804ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const Stmt *T) { 805ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner return T->getStmtClass() == StmtExprClass; 806ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 807ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const StmtExpr *) { return true; } 808ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner}; 809ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 810d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// TypesCompatibleExpr - GNU builtin-in function __builtin_type_compatible_p. 811d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// This AST node represents a function that returns 1 if two *types* (not 812d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// expressions) are compatible. The result of this built-in function can be 813d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// used in integer constant expressions. 814d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffclass TypesCompatibleExpr : public Expr { 815d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff QualType Type1; 816d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff QualType Type2; 817363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 818d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffpublic: 819363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff TypesCompatibleExpr(QualType ReturnType, SourceLocation BLoc, 820d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff QualType t1, QualType t2, SourceLocation RP) : 821d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff Expr(TypesCompatibleExprClass, ReturnType), Type1(t1), Type2(t2), 822363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff BuiltinLoc(BLoc), RParenLoc(RP) {} 823d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 8247f28fe8e00ec4fac17977374d8da491f873a3b05Steve Naroff QualType getArgType1() const { return Type1; } 8257f28fe8e00ec4fac17977374d8da491f873a3b05Steve Naroff QualType getArgType2() const { return Type2; } 826363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff 827389cecc83f33e93c8ba6bf2e8269b8690404416fSteve Naroff int typesAreCompatible() const { return Type::typesAreCompatible(Type1,Type2); } 828363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff 829d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff virtual SourceRange getSourceRange() const { 830363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 831d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 832d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const Stmt *T) { 833d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff return T->getStmtClass() == TypesCompatibleExprClass; 834d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 835d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const TypesCompatibleExpr *) { return true; } 836d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff}; 837d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 838d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// ChooseExpr - GNU builtin-in function __builtin_choose_expr. 839d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// This AST node is similar to the conditional operator (?:) in C, with 840d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// the following exceptions: 841d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// - the test expression much be a constant expression. 842d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// - the expression returned has it's type unaltered by promotion rules. 843d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// - does not evaluate the expression that was not chosen. 844d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffclass ChooseExpr : public Expr { 845d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff Expr *Cond, *LHS, *RHS; // First, second, and third arguments. 846d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 847d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffpublic: 848d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff ChooseExpr(SourceLocation BLoc, Expr *cond, Expr *lhs, Expr *rhs, QualType t, 849d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation RP) 850d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff : Expr(ChooseExprClass, t), 851d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff Cond(cond), LHS(lhs), RHS(rhs), BuiltinLoc(BLoc), RParenLoc(RP) {} 852d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff 853c1b607db38501f73c8e1461fc749a6b0e469f157Chris Lattner Expr *getCond() { return Cond; } 854c1b607db38501f73c8e1461fc749a6b0e469f157Chris Lattner Expr *getLHS() { return LHS; } 855c1b607db38501f73c8e1461fc749a6b0e469f157Chris Lattner Expr *getRHS() { return RHS; } 856c1b607db38501f73c8e1461fc749a6b0e469f157Chris Lattner 857c1b607db38501f73c8e1461fc749a6b0e469f157Chris Lattner const Expr *getCond() const { return Cond; } 858c1b607db38501f73c8e1461fc749a6b0e469f157Chris Lattner const Expr *getLHS() const { return LHS; } 859c1b607db38501f73c8e1461fc749a6b0e469f157Chris Lattner const Expr *getRHS() const { return RHS; } 860c1b607db38501f73c8e1461fc749a6b0e469f157Chris Lattner 861d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff virtual SourceRange getSourceRange() const { 862d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 863d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 864d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const Stmt *T) { 865d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff return T->getStmtClass() == ChooseExprClass; 866d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 867d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const ChooseExpr *) { return true; } 868d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff}; 869d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff 8705508518a2702b00be3b15a26d772bde968972f54Anders Carlsson/// ObjCStringLiteral, used for Objective-C string literals 8715508518a2702b00be3b15a26d772bde968972f54Anders Carlsson/// i.e. @"foo". 8725508518a2702b00be3b15a26d772bde968972f54Anders Carlssonclass ObjCStringLiteral : public Expr { 8735508518a2702b00be3b15a26d772bde968972f54Anders Carlsson StringLiteral *String; 8745508518a2702b00be3b15a26d772bde968972f54Anders Carlssonpublic: 8755508518a2702b00be3b15a26d772bde968972f54Anders Carlsson ObjCStringLiteral(StringLiteral *SL, QualType T) 8765508518a2702b00be3b15a26d772bde968972f54Anders Carlsson : Expr(ObjCStringLiteralClass, T), String(SL) {} 8775508518a2702b00be3b15a26d772bde968972f54Anders Carlsson 8785508518a2702b00be3b15a26d772bde968972f54Anders Carlsson StringLiteral* getString() { return String; } 8795508518a2702b00be3b15a26d772bde968972f54Anders Carlsson 8805508518a2702b00be3b15a26d772bde968972f54Anders Carlsson const StringLiteral* getString() const { return String; } 8815508518a2702b00be3b15a26d772bde968972f54Anders Carlsson 8825508518a2702b00be3b15a26d772bde968972f54Anders Carlsson virtual SourceRange getSourceRange() const { 8835508518a2702b00be3b15a26d772bde968972f54Anders Carlsson return String->getSourceRange(); 8845508518a2702b00be3b15a26d772bde968972f54Anders Carlsson } 8855508518a2702b00be3b15a26d772bde968972f54Anders Carlsson 8865508518a2702b00be3b15a26d772bde968972f54Anders Carlsson static bool classof(const Stmt *T) { 8875508518a2702b00be3b15a26d772bde968972f54Anders Carlsson return T->getStmtClass() == ObjCStringLiteralClass; 8885508518a2702b00be3b15a26d772bde968972f54Anders Carlsson } 8895508518a2702b00be3b15a26d772bde968972f54Anders Carlsson static bool classof(const ObjCStringLiteral *) { return true; } 8905508518a2702b00be3b15a26d772bde968972f54Anders Carlsson}; 8915508518a2702b00be3b15a26d772bde968972f54Anders Carlsson 892f9bcf01f82dfd2688f81e57bcc6300c9b13c51a6Anders Carlsson/// ObjCEncodeExpr, used for @encode in Objective-C. 893f9bcf01f82dfd2688f81e57bcc6300c9b13c51a6Anders Carlssonclass ObjCEncodeExpr : public Expr { 894f9bcf01f82dfd2688f81e57bcc6300c9b13c51a6Anders Carlsson QualType EncType; 895f9bcf01f82dfd2688f81e57bcc6300c9b13c51a6Anders Carlsson SourceLocation EncLoc, RParenLoc; 896f9bcf01f82dfd2688f81e57bcc6300c9b13c51a6Anders Carlssonpublic: 897f9bcf01f82dfd2688f81e57bcc6300c9b13c51a6Anders Carlsson ObjCEncodeExpr(QualType T, QualType ET, 898f9bcf01f82dfd2688f81e57bcc6300c9b13c51a6Anders Carlsson SourceLocation enc, SourceLocation rp) 899f9bcf01f82dfd2688f81e57bcc6300c9b13c51a6Anders Carlsson : Expr(ObjCEncodeExprClass, T), EncType(ET), EncLoc(enc), RParenLoc(rp) {} 900f9bcf01f82dfd2688f81e57bcc6300c9b13c51a6Anders Carlsson 901f9bcf01f82dfd2688f81e57bcc6300c9b13c51a6Anders Carlsson SourceRange getSourceRange() const { return SourceRange(EncLoc, RParenLoc); } 902f9bcf01f82dfd2688f81e57bcc6300c9b13c51a6Anders Carlsson 903f9bcf01f82dfd2688f81e57bcc6300c9b13c51a6Anders Carlsson QualType getEncodedType() const { return EncType; } 904f9bcf01f82dfd2688f81e57bcc6300c9b13c51a6Anders Carlsson 905f9bcf01f82dfd2688f81e57bcc6300c9b13c51a6Anders Carlsson static bool classof(const Stmt *T) { 906f9bcf01f82dfd2688f81e57bcc6300c9b13c51a6Anders Carlsson return T->getStmtClass() == ObjCEncodeExprClass; 907f9bcf01f82dfd2688f81e57bcc6300c9b13c51a6Anders Carlsson } 908f9bcf01f82dfd2688f81e57bcc6300c9b13c51a6Anders Carlsson static bool classof(const ObjCEncodeExpr *) { return true; } 909f9bcf01f82dfd2688f81e57bcc6300c9b13c51a6Anders Carlsson}; 910f9bcf01f82dfd2688f81e57bcc6300c9b13c51a6Anders Carlsson 9115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 9125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 914